Theralac®

A multi-strain probiotic supplement designed to support immune health and digestive regularity.

Theralac contains 30 billion CFU of lactobacilli and bifidobacteria probiotic cultures for complete intestinal coverage. The strains synergize and work together to promote digestive health, wellness, and a return to regularity so you can feel your best.

100% Satisfaction or Your Money Back!

We are so certain you’ll be happy with your purchase that we offer a 60-Day Money Back Guarantee to ensure customer satisfaction of our suite of digestive health supplements. If for any reason you wish to discontinue using our supplements, we will promptly issue a refund of your purchase.

Unrivaled QualityWe enlist third party labs to guarantee the potency, purity, and quality of every lot to ensure potency through expiration. Additionally, each strain listed has a well-documented history of efficacy.

Magnesium Stearate – It is used to fill the capsules and ensures a uniform mixture of all ingredients. A pharmaceutical grade, vegetable source is used in Theralac. Magnesium Stearate has been safely used in capsules and tablets for over 75 years.

Silicon Dioxide – Reduces moisture and improves shelf life. Silicon dioxide, or silica for short, is a micronutrient in human nutrition; a food grade source is used in Theralac.

Calcium Silicate – Anti-caking agent.

Ascorbic Acid – Antioxidant.

LactoStim® (Sunflower Lecithin and Oleic Acid) – Our patented prebiotic. LactoStim stimulates probiotic growth by providing a food source to the probiotics as soon as they arrive in your digestive tract. Only food grade Lecithin and Oleic Acid are used in Theralac (Protected by 5 US Patents).

Medical Information

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FAQ's

We provide same day shipping for all orders placed before 3:00 P.M. Central Time. We ship using USPS Priority Mail so your order will arrive as quickly as possible. Typically, shipments arrive within 2 - 3 days.
During the holiday season, postal carriers see a massive increase in volume which may lead to delays.
We provide tracking information for all accounts that have an associated email address so you can keep tabs on when your supplements are scheduled to arrive. If you do not see this email, check your spam folder.
If you wish to have your order shipped via UPS or have another special request, such as C.O.D., please call Customer Service to place your order. We're happy to ship internationally however additional shipping charges may apply.

We do not.
To study the effects heat has on our products, we placed a bottle of Theralac in a 100 degree F temperature controlled environment for 14 days and determined that it remained above its guarantee. Therefore, it is our conclusion that 2-3 days spent in transit isn't enough time to irreparably damage the probiotic organisms within our supplements.
It is important to note that probiotics do not go bad or spoil like a carton of milk would in high temperatures. Our Totally Inert Packaging, which includes amber glass bottles, anti-oxygen and anti-moisture desiccant packets, a nitrogen flush, triple seal, and rayon wadding provides optimum stability and freshness.
Additionally, to counteract any potential loss of viability from improper storage, we blend our probiotics with vast overage in bacterial counts to guarantee that we can deliver the full listed potency throughout the entire two-year shelf life. We have been posting online, third-party lab test results verifying potency online since 2003 and you can check the official bacterial count for your lot here.
With 15 years of third party testing and experience shipping worldwide, we 100% guarantee potency through expiration when our products are shipped without an ice pack.

Totally Inert Packaging (TIP) is our multi-step approach to ensuring guaranteed potency through expiration for all of our probiotic supplements.
We take these steps because it's important to minimize exposure. Because probiotic bacteria are living organisms, they have the same requirements for life as you or I -- without oxygen and water, probiotics cannot grow.
Most probiotic bacteria have been freeze dried during production to keep them in metabolic stasis. As we introduce moisture and oxygen, the once dehydrated probiotic bacteria wake up and begin reproducing or colonizing.
You want the probiotic bacteria to grow and colonize in your gut, not on the shelf.
Therefore, preventing the ingress of moisture and oxygen during storage is essential to ensure that your supplements remain potent through their expiration date.
Packaging Probiotics:
After encapsulation, we pour our probiotic capsules into a glass bottle. We specifically use brown glass bottles for two reasons:
They block UV light
They allow less external moisture contamination
Probiotic bacteria are as sensitive to UV radiation as you or I and amber glass bottles block more UV light than clear, green, or blue glass bottles. Additionally, glass bottles have a lower moisture-vapor transmission rate. What this means is that water can more readily pass through a plastic packaing barrier and increase the relative humidity inside a plastic bottle.
Next, we add moisture and oxygen dessicant packets followed up by a pure nitrogen flush of the inside of each bottle.
These packets absorb whatever leftover excess oxygen and moisture remaining inside the product after we flush the bottles with pure N2. By minimizing the oxygen and moisture content, we can guarantee that the probiotics within will remain inert until you're ready to start taking them!
Lastly, we apply a double seal complete with another set of moisture and oxygen barriers to finish our TIP process. By limiting their exposure, we can guarantee that our supplements will remain stable and potent through expiration.

Prebiotics are foods or supplements that stimulate the growth of probiotic bacteria. Foods high in prebiotic nutrients include: garlic, jerusalem artichokes, leeks, asparagus, onions, oats, cocoa, and chicory.
Our probiotics contain two prebiotics: Lactostim, a prebiotic comprised of lecithin and oleic acid that works by emulsifying fats and rehydrating the bacteria so they can start propagating faster in your digestive tract and sodium alginate which works double duty as both a protector and a food source for our probiotics.

Typically, you want to keep probiotics separated from food by about 30 minutes because most probiotic supplements do not have a method to protect the bacteria through the acidic environment in the stomach. Instead, many proiobitic manufacturers rely on excessive overage or select strains with mild acid tolerance.
Yet, even in the best case scenario, 99% of these bacteria die in the stomach, long before reaching your small intestine.
Because of this failure rate, many probiotic companies recommend taking their supplements 30 minutes before a meal with a glass of water. The stomach digests liquids in 15-20 minutes because they don't require a lot of acid or digestive effort which minimizes the bacteria's exposure to stomach acid.
On the other hand, it takes closer to 60-90 minutes for your body to begin digesting food which is a lot more time for unprotected probiotics to spend in the stomach. More time spent in the stomach during the digestive process means fewer probiotic bacteria survive. Because the majority of probiotic activity occurs outside the stomach and in the intestinal tract, you can see why they make this recommendation.
However, when using our probiotics, it does not matter whether or not you take them before, during, or after mealtime.
How do we do it?
Our patented delivery system utilizes dehydrated sodium alginate to ensure that all the bacteria and enzymes pass through the stomach unharmed with or without food or drink. If you're unfamiliar with sodium alginate, it helps to think about seaweed -- not the sushi kind, but the type that gets washed up on beaches and wrapped around your ankles in the ocean. You know how it's slimy and mildly gross to touch? Sodium alginate is responsible for that slimy texture seaweed is known for!
In an acidic environment, sodium alginate forms a gel matrix (a fancy word for that slimy feeling you're familiar with), creating a protective barrier between the probiotic bacteria in one of our capsules and the hydrochloric acid produced by your stomach. Once it's past the stomach and in the pH-neutral environment in your small intestine, the protective barrier dissolves, safely releasing the probiotic bacteria deep into your digestive tract where they can proliferate and promote the healthy function of your digestive system.

Yes, you can absolutely take probiotics with antibiotics!
When should I give probiotics with antibiotics?
While you can take antibiotics and probiotics at the same time, we recommend separating your probiotic supplement from your antibiotic by two hours. This separation will reduce the number of beneficial bacteria in your probiotic being killed by the antibiotic in your digestive tract.
How long should I take probiotics after antibiotics?
We recommend continuing to take a probiotic for approximately two weeks after your antibiotic regimen has completed. We recommend Theralac because our blend of Lactobacillus and Bifidobacteria probiotic bacteria will colonize your entire digestive tract.
You can continue to support the growth of beneficial bacteria after antibiotics by eating a diet rich in high-fiber foods like fruits and vegetables.
Why should I take a probiotic after antibiotics?
You take a probiotic after antibiotics because an antibiotic will kill both the good and bad bacteria throughout your digestive tract. Beneficial microbes like probiotic bacteria support the healthy structure and function of your digestive tract and help your body digest food and absorb nutrients. Introducing a probiotic either during or after an antibiotic regimen will support microbial balance.

Yes. Fructooligosaccharides (FOS) are prebiotic carbohydrates that stimulate probiotic growth. Some foods rich in FOS are artichokes, garlic, chicory, onions, and bananas. As a soluble fiber, FOS absorbs water to help your body maintain regularity. Additionally, some fructooligosaccharides are low-calorie sweeteners that can be used as a sugar alternative; however, they can cause gas in some individuals when taken as a supplement.

Yes! In fact, Probiotic deficiency is more common than you think! Numerous lifestyle factors can influence the balance of beneficial bacteria in your intestinal tract including, but not limited to: stress, poor diet, alcohol, travel, and aging.
To be honest, it's hard for a modern person not to have some kind of probiotic deficiency!
How do I fix a probiotic deficiency?
First and foremost, we recommend a diet rich in high-fiber foods. While taking a probiotic supplement may help, you have to remember that probiotic bacteria eat the same food we do. If you're not eating well, neither are the bacteria in your gut.
By adding more fruits and vegetables to your diet, you can improve the quality of life for your indigenous beneficial bacteria. Most prebiotics are fiber-based as well so increasing your fiber intake will provide additional prebiotic nutrition for your probiotic supplement of choice!